error running raspberry pi 3 target compiler

[elinir2000]

The command: gcc -H -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon arm1.cpp

produces the executable but visualGDB produced the error:

1 [Clang IntelliSense] Error: NEON intrinsics require NEON instruction set on target c:\dev\cpp\learn\arm4\arm4\arm_neon.h 4026 1
Error 2 error : #error NEON intrinsics require NEON instruction set on target C:\dev\cpp\learn\arm4\arm4\arm_neon.h 4026 2 arm4
Error 3 error : Command-line action failed C:\dev\cpp\learn\arm4\arm4\VisualGDB arm4

[support]

Hi,

It looks like the arm_neon.h file contains some checks that deem the current configuration (determined from checking built-in preprocessor macros via #ifdef’s) invalid. The best way to investigate it would be to look into the file that produces the error and see which exact #ifdef tests it performs.

[elinir2000]

Thank you.

I have set these flags   -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -H     in CMake project settings in CFLAG and CXXFLAGS fields, but I got the same error as I do not believe that the compiler ‘sees’ these flags.

Is there a way to see what flags are applied when the compiler is trying to produce the .o file and the executable ?

Eli

[support]

Hi,

Yes, you can add “VERBOSE=1” to make (not CMake) command template and rebuild the project. This should get CMake to print the command lines it is using.

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